जातस्य हि ध्रुवो मृत्युर्ध्रुवं जन्म मृतस्य च। तस्मादपरिहार्येऽर्थे न त्वं शोचितुमर्हसि॥
jatasya hi dhruvo mrityur dhruvam janma mritasya cha tasmad apariharye'rthe na tvam shochitum arhasi
Translation
For one who is born, death is certain; and for one who has died, birth is certain. Therefore, for that which is unavoidable, you should not grieve.
Commentary
A universally applicable truth — birth inevitably leads to death, and death (according to Hindu belief) leads to rebirth. Grieving over what is inevitable and natural is futile.